MSNBC host Joe Scarborough tore into Sean Hannity early Tuesday after the Fox News host appeared at a rally for President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE Monday night.

Scarborough accused Hannity, who said he would only interview the president, of lying about his intentions.

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"You have Sean Hannity saying 'I am not campaigning.' I mean, if you're going to campaign, own it. There's Sean Hannity, campaigning," Scarborough said on "Morning Joe" as video rolled of Hannity onstage at Trump's rally addressing the crowd.

"Again: Free country. Free to do it if they want to. But everybody is following Donald Trump's lead. They're lying through their teeth," he added.

Hannity appeared at Trump's Missouri rally alongside fellow firebrand conservative hosts Jeanine Pirro and Rush Limbaugh, who joined the president on a final campaign push for Republicans ahead of Tuesday's midterm elections.

In a tweet, the Fox host said that he would be interviewing Trump but specifically noted that he would not deliver a campaign address onstage with Trump.

"To be clear, I will not be on stage campaigning with the President. I am covering final rally for my show. Something I have done in every election in the past," Hannity tweeted.

In spite of reports, I will be doing a live show from Cape Girardeau and interviewing President Trump before the rally. To be clear, I will not be on stage campaigning with the President. I am covering final rally for my show. Something I have done in every election in the past. — Sean Hannity (@seanhannity) November 5, 2018

Trump's campaign called the Fox News host a "strong advocate for the President’s America First agenda" in a statement.

"We’re glad to welcome Cape Girardeau native Rush Limbaugh and Sean Hannity as special guests to this final stop on the tour where President Trump will make his case to the American people to support GOP candidates on Election Day in order to continue our great American comeback under his leadership,” Trump campaign COO Michael Glassner wrote.

Hannity was a top supporter of the president in 2016 and has remained a booster of Trump's agenda in the White House from his spot on Fox News's prime-time lineup.