Smirnoff Vodka is mocking President Trump's alleged ties to Russia in its new ad campaign.

A bus ad for the liquor company says it's "Made in America - But we'd be happy to talk about our ties to Russia under oath."

Trump has been under fire since his Election Day win over possible links between his campaign and Russia, after the U.S. intelligence community concluded that the Kremlin interfered in the U.S. election to help Trump win.

The Justice Department, FBI and Senate and House Intelligence Committees are investigating Russian election interference and potential Trump-Moscow ties.

Trump on Friday responded to James Comey's dramatic testimony, accusing the former FBI director of false statements about their private conversations. Trump said he would "100 percent" be willing to testify under oath.

Trump said Comey's statements vindicated his claims that he did not collude with Russia to tip the election in his favor and that he did not interfere with the federal probe.

Smirnoff, which originated in Moscow in 1864, is now owned by British-based liquor giant Diageo.