The AARP will endorse the House Democrats' healthcare bill, the Associated Press is reporting.

Officials with knowledge of the group's decision told The Associate Press on Wednesday that the senior's lobby has decided to give the $1.2 trillion measure its seal of approval. An announcement is expected Thursday. The officials spoke on condition of anonymity because the announcement has not been made.

If true, the endorsement would be a nice reassurance for Democrats nervous about what a healthcare vote would do to their 2010 re-election chances. The AARP represents the country's most likely voters: serniors.