By Marcy Gordon, AP

President Donald Trump and congressional Republicans have pledged to overhaul the nation's complex tax code. To slash taxes, they say they'll curb a web of expensive deductions and credits to allow more revenue to flow to the government.

Problem is, they're likely to run into a wall of resistance from people and groups drawn together by a singular warning: Don't touch my deduction.

Major cherished tax breaks — from deductions for mortgage interest and charitable donations to incentives for 401(k) contributions — have deep-pocketed supporters and lobbyists who...read more.