US elections 2010: Parties in final vote push

On Tuesday millions of Americans will vote in elections for the House of Representatives and the Senate.

President Barack Obama's Democratic party is expected to lose its majority in the House of Representatives and is struggling to keep the Senate.

The president's leadership during the economic crisis has been criticised in the campaigns while the grass-roots Tea Party movement has been galvanising support for the Republicans.

Mark Mardell reports.