A Senate candidate was booed and jeered as he publicly disavowed his support for Donald Trump and asked the Republican nominee to step down on Saturday.

Speaking at a campaign event, Nevada Republican Rep. Joe Heck — who is currently running to replace Senate Democratic Leader Harry Reid — said he could no longer support Trump due to the nominee’s past behavior and comments. (RELATED: Trump Apologizes After Hidden Cam Video Surfaces Of Him Talking Lewd About Women)

“I cannot in good conscience continue to support Donald Trump nor can I vote for Hillary Clinton,” Heck said to boos.

Heck’s disavowal followed the the leak of particularity lewd comments Trump made about women in 2005.

“My wife, my daughters, my mom, my sister, and all women deserve better. All Americans deserve better. Our campaign will move forward and will continue to be based on the principles of the Republican party, the need for conservative leadership, and the requirement that all people treated with respect and dignity,” Heck continued as one particularly enthusiastic boo-er continued to jeer.

Later in his comments, when Heck formally asked Trump to step down, more boo-er joined in drowning out a smattering of applause.

“I believe our only option is to formally ask Mr. Trump to step down and to allow Republicans the opportunity to elect someone who will provide us with the strong leadership so desperately needed and one that Americans deserve,” Heck said.

WATCH:

Heck is one of several Republican officeholders who have formally asked Trump to step aside.