HMM: National GOP breaks glass in Pennsylvania race.

The day after Conor Lamb won the Democratic nomination to run in a special election in this very pro-Donald Trump House district, Republican strategist Corry Bliss knew his party had another special election problem on its hands.

Bliss, who heads the main super PAC for House Republicans, arrived at his office at 6:30 a.m. and played an internet clip of Lamb, a telegenic 33-year-old former federal prosecutor and Marine veteran, speaking at a Democratic gathering. Then Bliss pulled up a video on social media of the Republican candidate he was tasked with helping, 59-year-old state legislator Rick Saccone.

“I realized this would be a race,” Bliss said.

Since that November morning, the Republican Party has launched a massive campaign to save a House seat here in the heart of Trump country. A loss in the March 13 contest — coming just months after its embarrassing defeat in the Alabama Senate race — would portend a potential blowout in the November midterms.

Nearly every corner of the GOP is involved. The White House is working closely with Saccone and dispatching President Donald Trump and Vice President Mike Pence to the suburban Pittsburgh district on his behalf. The House Republican campaign arm has begun a $2 million TV offensive and is aggressively pressing party lawmakers to help fund the candidate. Bliss’ group, Congressional Leadership Fund, is deploying dozens of field staffers, who braved frigid winds last weekend as they canvassed for votes.

If there’s a Blue Wave coming — and the data are mixed — unlike 2006, the GOP seems to be taking the possibility seriously this time.