LONDON (Reuters) – More than 40 pro-low tax lawmakers from Britain’s ruling Conservative Party have accused official forecasters of making errors that influenced policymaking and called on the government to ensure they were not “holding back the country’s recovery”. In the latest attack on the watchdog, the Conservatives urged finance minister Jeremy Hunt to fix what they called the Office for Budget Responsibility’s (OBR) “systemic issues” before the March 6 budget, possibly his last before an election this year. The low-tax campaign group, the Conservative Way Forward, said that since the OB…