The Treasure Coast's congressman has spoken at two annual conferences and on three online radio shows featuring others' racist, misogynistic and anti-Muslim sentiments.

U.S. Rep. Brian Mast, R-Palm City, was an unpaid speaker at the David Horowitz Freedom Center’s Restoration Weekend conferences in Palm Beach in 2016 and 2017 — the same event former Republican congressman and current Florida gubernatorial candidate Ron DeSantis was criticized for attending.

The Southern Poverty Law Center, which tracks white nationalists and hate groups, says Horowitz's conferences "range from single-day presentations given by anti-Muslim fear mongers in Horowitz’s network to extravagant weekend getaways that convene government officials with far-right thought leaders and activists."

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Mast, who spoke mostly about lowering taxes and supporting veterans, did not refer to anything TCPalm would categorize as hate speech, and in 2017 lamented people “who use their amplified voices to divide the country.”

Some of Horowitz's views are "radical" and "abhorrent" and do not represent Mast's views, campaign spokesman Brad Stewart told TCPalm.

"Just like every person he talks to doesn’t agree with his positions, he absolutely doesn’t agree with every statement ever made by the people he talks to," Stewart said in an email, calling the revelation about Mast's conference appearance a political "hit job."

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The information was first posted by American Ledger, a news website operated by Democratic PAC American Bridge.

Mast is running for re-election against Democrat Lauren Baer. Nonpartisan political analysts — Cook Political Report, Sabato's Crystal Ball and Inside Elections — predict Mast will win, but faces a tough battle.

Who is David Horowitz?

Horowitz, a conservative political figure who has shared controversial views on race and religion, has said the “only serious race war” was against whites.

His foundation funds the "Jihad Watch" website that regularly criticizes Muslims.

He also recently called Rutgers University professor a "self-loathing Jew" because she opposes Israel's occupation of the West Bank and Gaza.

Some of Horowitz's conference speakers have defended a candidate accused of child molestation, suggested killing Muslims and argued that women are less likely to be in leadership roles because of “biological causes.”

Mast's fellow speakers at the conference included President Donald Trump's former strategist Steve Bannon and Sebastian Gorka, a former Trump foreign policy adviser who vocally defended Trump's travel ban targeting predominantly Muslim countries.

Also among the speakers was Clint Romesha, who in 2013 received the Medal of Honor from President Barack Obama for his Army service in Afghanistan, Stewart noted.

Last month, after CNN reported on Mast's online radio show appearance with two hosts who regularly make anti-Muslim comments, Stewart said Mast talks to all media.

Mast "talks to many reporters about the issues that are most important to his constituents like clean water, support for veterans and community safety — just as he did in this interview," Stewart reportedly told CNN.