Progressive activist Kai Newkirk is aiming to harness the public's growing discontent with incumbent Democrats by challenging U.S. Rep. Greg Stanton.

In a Democratic primary, accusations are flying that allies of a hard-line pro-Israel group are trying to divide progressives, exploiting a broader rift in the party.

EXCLUSIVE — A conservative immigration nonprofit group is launching a new ad in states with competitive Senate races targeting Democrats over illegal immigration and the death of Kayla Hamilton, who ...