The Post-Gazette was Number Two in circulation to The Pittsburgh Press (a Scripps-Howard paper, which was a bit liberal, but not terribly so, and that made it very, very conservative compared to the Post-Gazette) until the Teamsters' Union put the Press out of business. For a time, the Post-Gazette was the only metropolitan-wide newspaper in the Pittsburgh area. Now, it is being challenged by The Pittsburgh Tribune-Review, a conservative paper.
Not true. The P-G supports about half as many R's as Democrats. With the local Republican Party sporting racists like McPherson and jailbirds like recently convicted State Rep. Jeff Habay and the national party still tainted by Abramoff bribes, it's a wonder the P-G ever finds a suitable R to endorse here in PA.