Obama oil spill address draws 32 million

Barack Obama's first address from the Oval Office delivered 32.1 million viewers Tuesday evening. The speech ranks as the president's second least-watched major cross-network primetime event.

Obama discussed the Gulf Coast oil spill and called for energy policy changes. The 20-minute address was viewed across 11 networks -- ABC, CBS, FOX, NBC, TEL, UNI, CNN, CNBC, FOXNC, MSNBC, and TWC. 

The audience is down 33% from Obama's first State of the Union address in January and down 21% from his last primetime speech announcing a strategy for U.S. involvement in Afghanistan last December.

Of Obama's major addresses, last night was the least-watched telecast yet. But the president's health care reform press conference last July pulled a smaller audience, drawing 24.7 million.