April 15 is far from Election Day. If you want to force a turnover in congress, make tax filing day also Election Day.
I would add that tax withholding should be abolished, so that all taxes would be due on that one day to give a bigger appreciation for the size of the Federal bite.
End withholding and make people pay quarterly — January 15 (still trying to handle the Christmas bills), April 15 (traditional filing date), July 15 (summer vacation time), and October 15 (just a couple of weeks from Election Day.)