Kansas Governor Sam Brownback (R) on Monday endorsed Marco RubioMarco RubioThe ignored question: What does the future Republican Party look like? Graham to roll out extension of Obama immigration program Trump and Cuba: A murky future MORE’s presidential campaign.
"Marco Rubio is a true conservative who can unite the party and defeat Hillary ClintonHillary Rodham ClintonDemocrats miss warning signs, even in blue Maryland Robert Gates doesn't expect job in Trump administration Dean drops out of DNC chairmanship race MORE or Bernie SandersBernie SandersDemocrats offer double-talk on Veterans Affairs Dean drops out of DNC chairmanship race Sanders vs. Trump: The battle of the bully pulpit MORE in the fall," Brownback, a former senator and congressman, said in a statement. "In the past, conservatives have been forced to make a choice between their head and their hearts. This year, we are fortunate to not have to make that choice.”
Brownback said Rubio has a “proven track record of protecting life, defending religious liberty, and undoing Obamacare.”
Rubio is averaging 20 percent support in national polls, behind front-runner Donald TrumpDonald TrumpGOP lawmakers praise Trump for Taiwan call Trump defends Taiwan call: President called me Bergdahl asks Obama for pardon MORE and Ted CruzTed CruzLewandowski: Top Cruz aide advised Trump team before NH primary Five reasons why Donald Trump could be the 'Greatest Communicator' Victims of Nazi Art theft need Congress to HEAR MORE.