Accepting the four Malacca defectors as part of Pakatan Harapan would be a grave mistake for the coalition, according to Bukit Gelugor MP Ramkarpal Singh.<br /><br />He was responding to Harapan chairperson Anwar Ibrahim's view that the four Malacca assemblypersons who defected to topple the BN-led state government should not be looked at the same way as those behind the Sheraton Move last year, as they were returning the people's mandate.