More News:

October 14, 2016

VIDEO: Jimmy Kimmel mocks Sen. Toomey for unclear position on Trump

Late night host makes fake campaign ad for Pennsylvania senator

In a tough re-election campaign, U.S. Sen. Pat Toomey, R-Pennsylvania, faces a conundrum. He finds the leaked lewd comments from his party's presidential nominee "indefensible and appalling," and he's said his differences with Donald Trump could become "so great as to be irreconcilable."

But Toomey has declined to specify whether he supports Trump over the candidate's Democratic rival Hillary Clinton (something Toomey's opponent, Democrat Katie McGinty, has repeatedly tried hitting him on over the past month or so). In fact, Toomey recently indicated to that he may not tell voters who he plans to vote for in the presidential election next month.

RELATED: Toomey still keeping Trump at arm's length | Meet the Pennsylvania man behind those viral presidential election parody videos | WATCH: Suburban Philadelphia voters, 'drunk' Mummers spoofed on 'SNL'

Jimmy Kimmel poked fun at Toomey's unclear position Thursday night on "Jimmy Kimmel Live." In a fake Toomey ad, a narrator impersonating the senator says that Trump is a "national disgrace"... who he's "proud" to support.

You can watch the faux campaign ad below: