By Joseph Ax Republican U.S. Senate candidate Kathy Barnette, a conservative commentator who has surged into contention ahead of Tuesday’s primary election in Pennsylvania, was photographed marching toward the U.S. Capitol on Jan. 6, 2021, alongside members of the far-right Proud Boys group, according to news reports. Supporters of then-President Donald Trump attacked police and stormed the Capitol in a failed attempt to prevent Congress from certifying his 2020 election loss to Joe Biden. The photos of Barnette from that day were posted online by Chad Loder, who describes himself as a expert in information security and online extremism, and...