Giuliani: 'I'd love to be a witness' at Senate impeachment trial
Trump slams Fox News over recent polling
President Trump criticized Fox News on Sunday over its recent polling, saying he doesn't "believe" the polls in recent days that have suggested he's losing ground to Democratic rivals and his disapproval rating is on the rise.
"I don't know what's happening with Fox," he told reporters as he prepared to leave New Jersey, saying he doesn't "believe" the polls.
"Fox is different. There's no question about it," he said, adding that he's "the one calling the shots" on the general election debates.
Trump also would not directly answer questions about whether he'll debate in 2020.
A Fox News representative was not immediately available for comment.
A Fox News poll released Thursday showed Trump losing head-to-head match-ups against four top Democratic presidential primary candidates.
The poll found Trump trailing Sens. Bernie Sanders (I-Vt.), Kamala Harris (D-Calif.) and Elizabeth Warren (D-Mass.) as well as former Vice President Joe Biden.
Another poll showed his disapproval rating rising to a near record.
Earlier in the day, Trump lashed out at Fox News political analyst Juan Williams, calling him "pathetic," "nasty" and "wrong."