Stay informed with free updatesSimply sign up to the US politics & policy myFT Digest -- delivered directly to your inbox.George Santos said he would not seek re-election in 2024, hours after a US congressional committee published a months-long investigation into the controversial Republican congressman from New York and said there was “substantial evidence” that he had violated federal law.The House ethics committee, which is split evenly between Democrats and Republicans, said on Thursday that the conduct by Santos “warrants public condemnation, is beneath the dignity of the office, and...