Could anyone please explain the last paragraph?
I do not understand it at all.

See a translation

Democratic lawmakers on Sunday raised questions about President Trump's claims a day earlier that former President Barack Obama wiretapped Trump Tower during the campaign.

Democrats criticized Trump for presenting the allegations with no evidence, calling the president's claims "ridiculous" and dismissing the comments as an attempt to change the subject from Russian interference in the election.

Senate Minority Leader Charles Schumer (D-N.Y.) said Obama had "flatly denied that he has done this," and said the claim by Trump presented issues for the president whether it turned out to be true or not.

"Either way, Chuck, the president's in trouble. If he falsely spread this kind of misinformation, that is so wrong," Schumer said during an interview on NBC's "Meet The Press."

"It's beneath the dignity of the presidency. It is something that really hurts people's view of government."

The New York Democrat said if the allegations prove false, it shows the president doesn't know how to "conduct himself."

"On the other hand, if it's true, it's even worse for the president," Schumer said.

"Because that means that a federal judge, independently elected, has found probable cause that the president, or people on his staff, have probable cause to have broken the law or to have interacted with a foreign agent."