Senate Minority Leader Harry Reid Harry Mason ReidSenate Republicans signal openness to working with Biden Mellman: The likely voter sham Bottom line MORE (D-Nev.) early Thursday slammed Republicans ahead of their meetings with Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE, arguing they agree with the presumptive presidential nominee's controversial comments.

"Since the Republican leader is all in for Donald Trump, you can only assume he approves of Trump's calling immigrants rapists and murderers," Reid said, referring to Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE (R-Ky).

Reid added that the McConnell, whom he called Trump's "highest-ranking supporter in Congress," must also agree "with Trump's view that women are dogs and pigs. You can only assume that he's not repulsed by his behavior toward women."

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Reid made the comments as 10 GOP senators, including McConnell, prepared to sit down with Trump on Thursday.

GOP lawmakers are expected to use the meeting, the first since Trump became the presumptive nominee, to advise the brash candidate to tone down his rhetoric.

Reid has repeatedly used the Senate floor to lash out at Republicans, arguing they are to blame for Trump's rise.

The Democrat added Thursday that Trump "owes his candidacy" to McConnell.

"So Donald Trump and the Republican leader should have a long, long conversation," Reid said. "At some point in their conversation, Donald Trump should thank the senior senator from Kentucky."

Reid also ripped Republicans as "obstructionist, anti-woman, anti-Latino, anti-Muslim, anti-middle class, anti-environment, anti-Obama and anti-everything" during the President Obama's administration.