LONDON (Reuters) -A British lawmaker from Prime Minister Boris Johnson’s Conservative Party has been arrested on suspicion of rape and other sexual offences committed over a seven-year period. London’s Metropolitan Police said a man, aged in his 50s, had been arrested on suspicion of indecent assault, sexual assault, rape, abuse of position of trust, and misconduct in public office. He remained in custody. A spokesperson for the Conservative whips office, which is in charge of party discipline in parliament, confirmed that the man arrested was a member of parliament for the Conservatives and s…