President Donald Trump tried to distance himself on Thursday from supporters¡¯ chants of ¡°send her back¡± at a rally where he blasted Somalia-born U.S. Rep. Ilhan Omar, as Republicans worry the incendiary mantra could set the tone for the 2020 campaign.

Omar shot back that Trump was ¡°spewing fascist ideology,¡± and Republicans expressed alarm that the inflammatory chant, building off of provocative tweets and statements by Trump, might become a theme of his 2020 re-election campaign.

¡°We cannot be defined by this,¡± said conservative Rep. Mark Walker, who added that Republican leaders in the House of Representatives discussed the potential political risks at a breakfast with Vice President Mike Pence.