Party leaders today welcomed Sir Christopher Kelly's proposals for a new expenses regime at Westminster, although disagreement immediately began to open up on implementation of the former civil servant's 60 recommendations.The report included many of the widely leaked proposals that have provoked such unhappiness within parliament, but the details appeared to marginally soften the proposals. Kelly's recommendations will now go forward to the new Independent Parliamentary Standards Authority (Ipsa).Predicted announcements included a recommendation to end claims for mortgage interest and allow MPs only to claim rent, up to £1,250 a month. The next intake will have to rent properties chosen and paid for by a new central agency, but current MPs with mortgages will continue to receive support. Kelly's committee ...