TikTok embarked on a desperate scramble during President Joe Biden’s last hours in office to stave off a nationwide ban, deploying lawyers and lobbyists as part of a “Hail Mary” onslaught to stall the bipartisan law.Get concise answers to your questions. Try Ask The Post AI.Worried a ban could tarnish Biden’s legacy, outgoing administration officials had made a striking concession, telling TikTok’s China-based owner, ByteDance, that there was “no reason” to comply with the law when it took effec...