Rudy Giuliani warns Mueller to listen to Trump -- and threatens him with 'additional step'

President Donald Trump's legal counsel Rudy Giuliani said in an interview Tuesday that the White House is starting a campaign against special counsel Robert Mueller. If the prosecutor doesn't heed their threats and cave into their demands, they might take "additional steps," Bloomberg reported.

“We are going to try as best we can to put the message out there that it has been a year, there has been no evidence presented of collusion or obstruction, and it is about time for them to end the investigation,” Giuliani said. “We don’t want to signal our action if this doesn’t work -- we are going to hope they listen to us -- but obviously we have a Plan B and C.”

Giuliani also said that there is no reason for Mueller to interview Trump. If Mueller wants to talk to the president, the former New York mayor said that he would need to turn over the 1.2 million pages of documents cataloging White House interviews and court documents. He also intends to demand that the investigation end shortly.

“It is hard to recommend an interview when the questions presented indicate they have no evidence, and it is hard not to get at least the appearance they are attempting to trap him into perjury,” Giuliani said.

The White House intends to roll out the campaign on the one-year anniversary of Mueller being appointed to oversee the investigation. To put the timeline in context, the Watergate investigation took more than two years and the GOP's Benghazi investigation continued for four years after the 2012 attacks. In the investigation into former President Bill Clinton, special counsel Ken Starr was appointed Aug. 1994. Impeachment for Clinton was initiated in Dec. 1998.