Top Democrats back impeachment after Robert Mueller says Trump wasn't cleared over obstruction

Donald Trump was facing renewed calls for impeachment on Wednesday as special counsel Robert Mueller said he had not cleared the president over the crime of obstructing justice.  Around half a dozen Democrats running for the 2020 presidential nomination called for impeachment proceedings to begin after Mr Mueller’s unexpected public statement.  Mr Mueller, who led the inquiry into Russian election meddling, said on Wednesday: “If we had had confidence that the president cle