Rep. Jason Altmire led Rep. Mark Critz by a mere 4 points in a test of Tuesday's Democratic primary matchup, according to a poll released today. The Tribune-Review/WPXI-TV poll showed Altmire ahead of Critz 43 percent to 39 percent in the finals days of their increasingly competitive contest. The two Democrats are facing off in southwestern Pennsylvania's 12 district after GOP-led redistricting combined their current territory. (more…)