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The White House had a busy week. On Wednesday, President Donald Trump claimed during a speech at the Coast Guard Academy graduation ceremony that no politician has ever been “treated worse or more unfairly” than himself. Critics pushed back online: Some Facebook pages juxtaposed the words against pictures of the late South African leader Nelson Mandela, who was once imprisoned for his political activism, or assassinated presidents, such as John F. Kennedy and Abraham Lincoln.

The following day, Trump tweeted that the investigation into his campaign’s ties to Russia is the “single greatest witch hunt in American history.” CNN reported on Thursday that during a scheduled lunch with television news anchors, the president also claimed that the special counsel investigation, now led by former FBI director Robert Mueller, “hurts our country.” This stands in stark contrast with how past presidents, like Bill Clinton and Ronald Reagan, reacted to special investigations.

According to the archives of The New York Times, Reagan welcomed Lawrence Walsh in 1986 when he was named as a special prosecutor looking over the Iran arms affair by calling Walsh a "distinguished jurist" and promising him complete cooperation. “I have instructed all members of my administration to cooperate fully with the investigation in order to insure full and prompt disclosure,'' Reagan said in a statement at the time.

Trump’s situation is uniquie in that he continues to hold campaign-style rallies and fund-raising drives even after taking office. The Chicago Tribune reported Trump’s team sent out a GOP fund-raising pitch to his supporters this week. It claimed that they already knew “the media was out to get us,” but now there were unelected officials seeking to “sabotage President Trump and our entire America First movement.” Supporters were urged to donate money to help the president.

The fund-raising letter didn’t name Trump’s supposed enemies. But it came after a memo written by former FBI director James Comey surfaced indicating that Trump reportedly asked him to stop the investigation into Trump’s former national security adviser, Michael Flynn, whom The New York Times reported has financial ties to both Russian and Turkish officials. One of Comey’s former FBI associates corroborated the content of the memo, telling The Washington Post: “Comey felt as if Trump did not understand or did not like the FBI director’s independence and was trying to get Comey to bend the rules for him.”

Press secretary Sean Spicer denied allegations that Trump impeded the FBI investigation. Trump also denied that he asked Comey to drop the probe. However, some White House officials told Politico that they feel “helpless” and don’t know the truth about Trump’s actions behind closed doors with Comey.

Mixed messages continue to pour out of the White House. On May 12, Trump was threatening on Twitter to cancel traditional press briefings altogether "for the sake of accuracy" because he claimed his spokespeople can’t be expected to speak with “perfect accuracy” about the president’s views and actions.

It’s hard to find the truth behind what Trump says. So we’ve teamed up with PolitiFact to help you separate fact from fiction. Here are the biggest lies the Trump administration told this week: