By MARC LEVY Associated Press
HARRISBURG, Pa. (AP) — Sean Parnell announced his candidacy Tuesday for the Republican nomination for Pennsylvania’s open U.S. Senate seat. Parnell is a decorated Army veteran and regular guest on Fox News programs who became a favorite of former President Donald Trump. Parnell unsuccessfully challenged Democratic U.S. Rep. Conor Lamb here in the 17th District last year. The Senate seat is being left open after two-term Republican Sen. Pat Toomey announced in October that he wouldn’t run again. Both the Democratic and Republican fields are getting crowded, with next year’s primary election still a year away.