Rep. Jamie Raskin (D-MD) is pushing Republicans to stop their effort to impeach President Joe Biden following a revelation that one of Republicans’ key witnesses was arrested for allegedly making false statements to investigators. Earlier on Thursday, an informant who made derogatory claims about Biden and his son Hunter was arrested by the FBI after a grand jury charged him with false statements and obstruction, reported Politico. The witness had claimed Biden was behind a massive bribery scheme, but reportedly changed his story after pressing from investigators. That led the internet to trol…