Republicans and Democrats alike go after Mastriano in Pennsylvania governor's race

(CNN) The message was blunt to Pennsylvania Republicans in the closing days before the May 17 primary : Don't pick someone who can't win.
That comment was directed at the presumed front-runner for the Republican nomination, state Sen. Doug Mastriano .
The clearest sign of Mastriano's presumed dominance in the primary came Saturday when he earned a last-minute endorsement from former President Donald Trump .
Mastriano has been one of the leading peddlers in Pennsylvania of Trump's lies about the 2020 election.
But Corman's remarks showcased what's been an open worry among Republicans -- that Mastriano could be too extreme to win a general election in the battleground state.
Winning the primary and losing the general because the candidate is unable to get the votes in the middle isn't a win.
Still, in the final days before the Pennsylvania primary, Mastriano stood before supporters in Western Pennsylvania and proudly asserted that he was the "most conservative candidate" running for the Republican gubernatorial nomination.
Mastriano was also pictured outside the US Capitol on January 6, 2021, the day of the insurrection there.
Like Mastriano, the two-term state attorney general also rose to national prominence in 2020, defending Pennsylvania's presidential election result.
Shapiro faced off with the Trump campaign and its allies dozens of times in court, winning nearly every single case brought against the state.
In the closing arguments of his campaign, Shapiro is emphasizing not just voting, but also abortion rights.
"We think it's important that the people of Pennsylvania ... know that there's a clear contrast between he and I."