Senate Democrats announced Wednesday that they planned hearings looking into the rise of super PACs and unregulated spending in elections.

Senate Democrats formally unveiled legislation Wednesday to ensure that all millionaires would pay a minimum federal tax of 30 percent.

As House Republicans prepared to release a spending proposal intended to overhaul the federal transportation system, Senate Democrats on Thursday rushed to complete a bipartisan effort to end a stalemate that has undermined transportation programs for almost three years. Read full article gt;gt;

Senate Democrats on Thursday stopped a Republican attempt to block President Barack Obama from using his authority to raise the government#39;s borrowing cap by $1.2 trillion.

President Barack Obama#39;s Democratic allies in the Senate promised Wednesday to press ahead this year with legislation drawn from his plans to require millionaires to pay at least 30 percent in taxes and curb tax preferences for companies that ship jobs overseas.