Republican presidential nominee Donald TrumpDonald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE slammed presumptive Democratic nominee Hillary ClintonHillary Diane Rodham ClintonThe Memo: Trump furor stokes fears of unrest Bloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close MORE's vice presidential choice, saying he was surprised by the decision.

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"What happened with the choice of Tim KaineTimothy (Tim) Michael KaineTrump taps Amy Coney Barrett for Supreme Court, setting up confirmation sprint Supreme Court fight pushes Senate toward brink Trump plans to pick Amy Coney Barrett to replace Ginsburg on court MORE was a slap in the face to Bernie SandersBernie SandersTrump, Biden will not shake hands at first debate due to COVID-19 Sanders tells Maher 'there will be a number of plans' to remove Trump if he loses Sirota reacts to report of harassment, doxing by Harris supporters MORE and everybody," he said on NBC's "Meet the Press" in an interview that airs Sunday.

"I was shocked. I love it from my standpoint."

Trump went on to criticize Sen. Tim Kaine (D-Va.) for taking "over $160,000 of gifts."

"And they said, 'Well, they weren't really gifts, they were suits and trips and lots of different things,' all for $160,000," Trump said.

"I believe it was Bob McDonnell, in the meantime, he had to go to the United States Supreme Court to get out of going to jail," he continued, referring to the former Virginia governor.

"Bob McDonnell took a fraction of what Kaine took. And I think, to me, it's a big problem. Now, how do you take all these gifts? Hundreds of thousands of dollars."

Kaine is also bought and owned by the banks, Trump said, before the businessman launched into an attack on the trade deals supported by the Virginia senator.

"He's in favor of TPP and every other trade deal that he's ever looked at," Trump said, pointing to President Obama's Trans-Pacific Partnership.

"Now, he's going to change. Don't worry about that. ... It's OK. He is going to change his tune. And I understand he's now going to say, 'I'm against TPP.' Hillary Clinton was totally in favor of TPP, which is the job killer, right? So was he. When she watched me on your show and other shows, all of a sudden she changed, because she knows she can't win that in the debate."