Sen. Lindsey GrahamLindsey Olin GrahamRepublicans aim to avoid war with White House over impeachment strategy New York Times editorial board calls for Trump's impeachment Graham invites Giuliani to testify about recent Ukraine trip MORE said John Kasich is the best Republican presidential candidate but that he can't win the nomination, which is why the South Carolina Republican is backing Ted Cruz
Rafael (Ted) Edward CruzSunday Talk Shows: Lawmakers look ahead to House vote on articles of impeachment, Senate trial The Hill's Campaign Report: 2020 Democrats trading jabs ahead of Los Angeles debate Senate Republicans air complaints to Trump administration on trade deal MORE.
“John Kasich's problem is he is an insider in an outsider year and nobody seems to want to buy that,” he added.
Graham signaled his support for Cruz last week, when news emerged he would be hosting a fundraiser for him. This comes after harsh comments Graham made about his Senate colleague, including while running against the Texas senator in his own White house bid.

"I think he'd make a better president than Trump for damn sure, and I think he'd take the country in a new direction other than Clinton," Graham said.
Asked if Kasich would make a better president than Cruz, Graham said, "I think so."
He called Trump a "con man" and blasted the GOP front-runner for his support of waterboarding in the wake of this week's terrorist attacks in Brussels.