On Saturday evening, the Des Moines Register endorsed Marco Rubio for the Republican presidential nomination:

Sen. Marco Rubio has the potential to chart a new direction for the party, and perhaps the nation, with his message of restoring the American dream. We endorse him because he represents his party's best hope. That hope rests partly in the electoral calculus of the country. Republicans should havelearned from 2012 that they cannot win with Republicans alone. Recent polling shows Rubio has higher favorability ratings among independents than all candidates but Ben Carson, as well as positive ratings among Latinos. Rubio promises specific answers for the issues in these voters' lives. "It's been a long time since the Republican Party has talked to a single mother raising two children who is struggling at $15 or $14 or $13 an hour. It's been a long time since the Republican Party has had an agenda that talks to students," he told the Register's editorial board. Our hope, however, does not rest solely on his ability to welcome new people to the party. We believe Rubio can inspire the base with his ideas on improving the economy, education system and social programs. In two meetings with the editorial board, the whip-smart senator displayed an impressive grasp of public policy detail, reeling off four-point plans on foreign policy and other issues.

Donald Trump currently leads Ted Cruz in the RealClearPolitics average of Iowa polls 28.7 percent to 26.2 percent, with Rubio in third place at 11.0 percent. But the race remains quite fluid. "It is impossible as a person who pays attention to the numbers and history to write anybody off," Des Moines Register pollster Ann Selzer told TWS earlier this week.