President Donald Trump and congressional Republicans are negotiating a tax package that a budget watchdog group estimated could cost anywhere from $5 trillion to $11.2 trillion over the next decade. A series of tax policy changes that Trump supports appear to have broad support among Republicans in Congress. The Committee for a Responsible Federal Budget has released a study that projects the cost of each item over a 10-year period. The possible tax changes are expected to be included in a budget reconciliation package, which allows the GOP to bypass the filibuster in the Senate, where they lack a 60-vote...