So in English there are a couple options — you can say “I’m biased toward….” or “I’m partial to…” – note that you can also use these words to mean you really like something (i.e. “I’m partial to green tea ice cream”).
Here are some more examples:
“That story is inaccurate and biased! Don’t pretend you’re telling the truth!”
“The judge should not be partial toward either side.” / “A referee should not be partial toward a team.”
Hope this helps!