Sen. Lindsey GrahamLindsey Olin GrahamDems walk tightrope on Pompeo nomination Senate panel moving ahead with Mueller bill despite McConnell opposition Overnight Defense: Lawmakers worry over Syria strategy | Trump's base critical of strikes | Flake undecided on Pompeo | Coast Guard plans to keep allowing transgender members | GOP chair wants to cut B from Pentagon agencies MORE (R-S.C.) said on Sunday presidential candidate Sen. Ted CruzRafael (Ted) Edward Cruz32 male senators back Senate women's calls to change harassment rules Senate confirms Trump’s pick to lead NASA DOJ denies reports judicial nominee once called illegal immigrants 'maggots' MORE (Texas) has “made the best case” that he can beat real estate developer Donald TrumpDonald John TrumpHouse Republicans push Mulvaney, Trump to rescind Gateway funds Pruitt spent K flying aides to Australia to prep for later-canceled visit: report Rosenstein told Trump he is not a target of Mueller probe: report MORE for the Republican nomination.
“I think [Florida Sen. Marco] Rubio and [Ohio Gov. John] Kasich have got to decide among themselves: Can they be an alternative to Trump over time?” he said on NBC’s "Meet The Press."
"To me, it’s clear that Ted has made the best case thus far that he can be the alternative to Trump.
"The best thing I think could happen is for the party to unite before Ohio and Florida and make sure that we not only beat Trump in Ohio and Florida, but that we have a candidate that can beat him thereafter. And right now it seems like Ted Cruz has the best case to be made."
Graham has long criticized his Senate colleague's candidacy. He said in January that choosing between Cruz and Trump is "all like being shot or poisoned."
"I think you get the same result, whether it's quick or it takes a long time,” he said.

But he has since said that rallying around Cruz could at least stave off a win by Trump, who has won support in part by making divisive comments about Muslims and Hispanics and who last Sunday hedged when asked about support from white supremacist David Duke.