Story highlights A Texas congressman explained his continued support of Trump

He said he might drop his support if Trump hypothetically admitted to liking rape

Washington (CNN) Texas Rep. Blake Farenthold struggled Tuesday to identify the line Donald Trump would have to cross before he lost his support, saying he'd "consider" pulling it when posed with a hypothetical scenario in which Trump said he liked raping women. Farenthold later apologized.

Farenthold was interviewed by MSNBC host Chris Hayes on the political fallout from a leaked video showing Trump, among other things, saying he could grab women by the genitals.

Asking the Republican congressman about the recent wave of party leaders, like Sen. John McCain and Rep. Paul Ryan, pulling their support from Trump, Hayes tried to size up Farenthold's commitment.

"Until he does something so bad to make him worse than Hillary, I'm still in," Farenthold said.

Hayes posed a hypothetical: "If someone off the record, in a locker room -- this was not in a locker room, it was a workplace -- said, 'I really like raping women,' would that be locker-room talk?"

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