Republicans plan to seek answers from Health and Human Services Secretary Kathleen Sebelius on the Obama administration's troubled debut of the website it is using to offer health insurance.
Senators are preparing for a potentially rancorous day Tuesday as Democrats say they may change filibuster rules to keep Republicans from blocking White House nominees for top executive jobs.
Senate Republicans are criticizing federal regulators' efforts to track the credit card, mortgage and spending habits of millions of consumers by collecting anonymous data about them.