knowingly, knowing all the facts, with full knowledge of the facts, with one's eyes open

(obsolete or proscribed and very informal) because

(transitive) to challenge, to call into question, to question / (reflexive) to question oneself, to engage in self-reflection

(law) winning of the case (in a trial) / (figuratively) upper hand in a debate, victory

(informal) and with good reason, and rightly so, and unsurprisingly so

on account of, due to, because of

lost cause

innocent, uninvolved

(informal) carry on, keep going, keep talking, fascinating!

(literary) to take sides