Those reactions can be obtained from public opinion polls and the views of prominent Americans, newspapers and business interests and from efforts to promote understanding of the issues and congressional support of the changes.
American public opinion polls consistently have shown that a majority of Americans favor reestablishing relations with Cuba. In April 2009 the favorable opinion ranged from 60% to 71% with the opponents from 20% to 30%. In April 2014 it was 51% to 20%, and in October 2014, 56% to 29%. 
This was confirmed just after President Obama’s December 17th announcement of the breakthrough with Cuba in a poll conducted by ABC News and the Washington Post. Re-establishing diplomatic relations was supported, 64% to 31%. Ending the embargo, 68% to 29%. Ending travel restrictions, 74% to 24%. 
On January 19, 2015, over 70 prominent Americans sent a letter to President Obama ”commending [him] on the historic actions [he is] taking to update America’s policy toward Cuba and Cuban citizens. Our new posture of engagement will advance our national interests and our values by empowering the Cuban people’s capacity to work towards a more democratic and prosperous country–conditions that are very much in the U.S. interests.” 
The New York Times’ editorial of December 18, 2014, “Mr. Obama’s Historic Move on Cuba,” stated that the changes in U.S. relations with Cuba “ends one of the most misguided chapters in American foreign policy. The White House is ushering in a transformational era for millions of Cubans who have suffered as a result of more than 50 years of hostility between the two nations.”
The Wall Street Journal’s editorial on the announcement of the changes first admitted that “20 years ago these columns called for lifting the U.S. trade embargo on Cuba. We did so to assist the impoverished Cuban people and perhaps undermine the regime.” The Journal, however, went on to argue that “Mr. Obama’s approach will provide immediate succor to the Castro government in the hope of eventually helping the Cuban people.” A similar negative view was expressed by the Journal’s conservative columnist, Mary Anastasia O’Grady, “So How’s That Cuba Deal Going?” Another of the Journal’s conservative columnists, Peggy Noonan, however, reached a different conclusion in her article, “The Cuban Regime is a Defeated Foe: In time, normalized relations will serve the cause of freedom.”
An even more negative review was provided in the Washington Post’s editorial, “President Obama’s ‘betrayal’ of Cuban democrats.”
On January 8, 2015, the United States Agricultural Coalition for Cuba was launched by 30 companies and other organizations “to strive to turn Cuba from an enemy to an ally . . . by building trade relations with an honest appraisal of the past and a fresh look to the future.” This mission is based upon the beliefs that “the improvement of agricultural trade between the U.S. and Cuba is the foundation for building successful and enduring relations between the two countries” and that “an increased exchange of ideas, knowledge, capital and credit will benefit both countries.” Speaking in support of this Coalition were U.S. Secretary of Agriculture (Tom Vilsack), Governor of Missouri (Jay Nixon), U.S. Senators Amy Klobuchar (Dem., MN) and Jerry Moran (Rep., KS) and U.S. Representatives Sam Farr (Dem., CA), Kevin Cramer (Rep., ND) and Rodney Davis (Rep., IL).
Another supporter of the reconciliation, including the ending of the embargo, is the U.S. Chamber of Commerce, the world’s largest business federation representing the interests of more than 3 million businesses of all sizes, sectors, and regions, as well as state and local chambers and industry associations. On December 17, 2014, it stated, ““The U.S. business community welcomes today’s announcement, and has long supported many of the economic provisions the president touched on in his remarks. We deeply believe that an open dialogue and commercial exchange between the U.S. and Cuban private sectors will bring shared benefits, and the steps announced today will go a long way in allowing opportunities for free enterprise to flourish. The Chamber and its members stand ready to assist as the Cuban people work to unleash the power of free enterprise to improve their lives.”
CodePINK (Women for Peace) has started a campaign to have citizens: “Tell Congress that you support the President’s effort to improve US-Cuba relations, and you’d like them to go even further by lifting all travel restrictions, take Cuba off the terrorist list, and return Guantanamo naval base to the Cuban people.”
An important event to promote Minnesotans understanding of these issues will be on February 23rd (9:30-11:00 a.m.): “Modernizing U.S.-Cuba Relations Summit.”  This Summit has been called by our Senator Amy Klobuchar, a self-identified “strong supporter of normalizing ties with Cuba and increasing travel and commerce that could create new economic opportunities for American farmers and businesses while increasing the quality of life for Cubans.” After the Senator’s opening remarks, the keynote speaker will be Michael Scuse (Undersecretary for Farms and Foreign Agricultural Services, U.S. Department of Agriculture). The Senator will then moderate a panel discussion with Dave Fredrickson (Commissioner, Minnesota Department of Agriculture), Devry Boughner Verwerk (Cargill Incorporated’s Director of Latin American Corporate Affairs and Chair of the U.S. Agricultural Coalition for Cuba), Rodolfo Gutierrez (Executive Director, Hispanic Advocacy and Community Empowerment through Research) and Ralph Kaehler (Minnesota farmer who has participated in trade missions to Cuba).
I am helping to organize Minnesotans for U.S.-Cuba Reconciliation to inform the citizens of our state about the importance of this breakthrough and to mobilize public opinion to persuade our representatives in Congress to support the various measures to implement such reconciliation.
Now is the time for U.S. citizens who want to see our country reconciled with Cuba to be active. Say thank you and support, politically and financially, senators and representatives who support this effort. Identify those in Congress who appear to be open to this point of view from the citizenry and communicate your views to them. Write letters to the editor or op-ed articles for publication. Or, like me, research and write blog posts on the issues. Talk with your friends and colleagues.
Fellow Minnesotans should contact me to join Minnesotans for U.S.-Cuba Reconciliation. Citizens in other states, I hope, will organize similar groups.
I also invite comments to this post with corrections or additional facts and sources regarding the American people’s reactions to this important change in our country’s relations with Cuba.
 Edwards-Levy, Polls Show Support for U.S. To Re-Establish Ties with Cuba, Huff. Post (Dec. 18, 2014); Dugan, Americans on Cuba: For Normalized Relations, but Party Divide Exists, Gallup (Dec. 18, 2014).
 Holyk, Poll Finds Broad Public Support for Open Relations with Cuba, abc News (Dec. 23, 2014).
 Fuerte, Prominent USA personalities Urge Obama to Deepen Relationship with Cuba, Havana Times (Jan 19, 2015). The signers of the letter included Bruce Babbitt (former Governor of Arizona and former U.S. Secretary of the Interior), Harriett Babbitt (former U.S. Ambassador to the Organization of American States), Samuel Berger (former U.S. National Security Advisor), Chet Culver (former Governor of Iowa), Francis Fukuyama (Stanford University), Dan Glickman (former U.S. Congressman and former U.S.Secretary of Agriculture). Thomas Pickering (former U.S. Ambassador and former U.S. U.S. Under Secretary of State for Political Affairs), Bill Richardson (former Governor of New Mexico and former U.S. Ambassador to the U.N.), Ken Salazar, former Colorado Attorney General, former U.S. Senator and former U.S. Secretary of the Interior), George Schultz (Former U.S. Secretary of State, Treasury and Labor) and Strobe Talbott (former U.S. Deputy Secretary of State).
 The Summit will be at at the University of Minnesota College of Continuing Education, Room 135, 1890 Buford Avenue, St. Paul, MN 55108. It is free and open to the public. Please RSVP to Clara_Haycraft@Klobuchar.senate.gov.