Merriam-Webster’s Online Dictionary says:

obsequious (&b-’sE-kwE-&s), (adj.): marked by or exhibiting a fawning attentiveness

For example:

AUSTIN, Texas (AP) — U.S. Supreme Court nominee Harriet Miers told George W. Bush in a 1997 birthday card that he was “the best governor ever” and, in a separate note to her boss, said she hoped his twin daughters recognize their parents are “cool.”