WASHINGTON (Reuters) - Republican Senator Lindsey Graham said on Thursday his party's anti-tax orthodoxy needed to be revisited, sparking interest from a senior Democrat who pledged to work with him to try to avoid deep automatic budget cuts set for early next year. Graham, a conservative Republican, said he did not agree with fellow Republicans who thought any money saved by closing tax loopholes and eliminating tax deductions must go toward lowering tax rates, as opposed to using the savings for deficit reduction. ...