Factbox-Six congressional Republicans targeted by Trump's revenge endorsements

WASHINGTON (Reuters) - Former President Donald Trump has endorsed challengers to six congressional Republicans, part of his effort to assert dominance over the party after losing his re-election bid last year to Democrat Joe Biden.

Trump's fire has been focused on the handful of Republican lawmakers who voted to impeach him on a charge of inciting the Jan. 6 U.S. Capitol riot, or to convict him on that charge in a Senate trial that ultimately ended in his acquittal.

Below are notable Republicans whom Trump has targeted through his endorsements.