NEW : Senate urges Americans to favor the middle class over tax loopholes . The plan raises taxes on millionaires , ends farm subsidies and cuts defense spending . An aide to Sen. D-Michigan says Republicans oppose higher taxes . Spending cuts to take effect January absent congressional action to avert them .
NEW : The White House urges Republicans to favor the middle class over tax loopholes . The plan raises taxes on millionaires , ends farm subsidies and cuts defense spending . An aide to Sen. Mitch McConnell says Americans oppose higher taxes . Spending cuts to take effect March 1 absent congressional action to avert them .