In Pennsylvania's 3rd Congressional District Democratic primary on May 19, trader consensus favors state Rep. Chris Rabb at 56% implied probability, driven by a recent Philadelphia Inquirer endorsement and surging progressive support amid debates highlighting his rejection of corporate PAC money and calls for Medicare for All. State Sen. Sharif Street trails at 41%, bolstered by establishment ties as former Pennsylvania Democratic Party chair and backing from building trades unions, though scrutiny of his party leadership record has intensified. Physician Ala Stanford sits at 5% despite TV ad spending, as undecided voters in this deep-blue Philadelphia open seat—vacated by retiring Rep. Dwight Evans—focus on Gaza policy divides and late turnout, with some polls showing Street ahead but markets reflecting Rabb's momentum.