The 60-37 vote clears away procedural hurdles for legislation that would allow the president to negotiate trade pacts and then put them on a so-called fast track through Congress.
Airports want Congress to raise passenger fees to pay for improvements, but airlines say the move would hit passengers in the pocketbook and might discourage people from flying.
The Greek government has been given some time to work out a deal with its creditors. Eurozone and International Monetary Fund officials are scrutinizing the latest proposal.
European leaders met Monday in a last-ditch effort to keep Greece from defaulting on loan payments that are due soon. There was no resolution, but both sides will reconvene later this week.
Eurozone leaders are to meet in Brussels on Monday in a hastily called summit aimed at resolving the Greek debt crisis. Greece has until the end of the month to make a huge debt payment to the IMF.
Against the backdrop of several fiery derailments, safety advocates are questioning whether new federal rules meant to prevent incidents go far enough. Opponents say the new rules are too costly.
An important part of Detroit's skyline is on the auction block — the 29-story Fisher Building. The bank foreclosed on it, and next week, it goes up for sale online.
Greece needs help to make a loan payment at the end of the month, but its government refuses to enact the economic reforms its creditors are demanding. The threat of a run on Greece's banks is complicating current negotiations, which will continue Monday at a summit meeting of Greek and eurozone leaders.