According to Wikipedia, the New York Post has been criticized for "sensationalism, blatant advocacy, and conservative bias." It continues:
Perhaps the most serious allegation against the Post is that it is willing to contort its news coverage to suit Murdoch's business needs, in particular that the paper has avoided reporting anything that is unflattering to the government of the People's Republic of China, where Murdoch has invested heavily in satellite television.[51]
However, it has recently allowed criticism of the People's Republic of China and its handling of the Hong Kong protests.[52] ...
According to a survey conducted by Pace University n 2004, the Post was rated the least-credible major news outlet in New York. It was the only news outlet to receive more responses calling it "not credible" than credible (44% not credible to 39% credible).