Former Sen. Mark Begich addresses the Alaska State Legislature on Monday, March 3, 2014. Begich did not rule out a 2016 Senate run. (Skip Gray/ Gavel Alaska).Former U.S. Sen. Mark Begich may consider running as a write-in in this year’s crowded U.S. Senate race. Begich tells Anchorage television station KTVA that people have been calling and urging him to enter the race. He says he will see what his options are, and adds he doesn’t have a timeframe for his decision. He didn’t immediately respond to a message Tuesday from The Associated Press.