Washington (CNN) -- The decision for President Barack Obama to make a major address to the nation on the Gulf oil spill came together Friday and Saturday, according to senior administration officials.
Just days before, the White House had indicated no such address was in the works for the very near future.
So what changed?
A top White House aide said "after spending two days in region it's a good time to tell folks what has been done and what needs to happen."
On his fourth visit to the Gulf region on Monday and Tuesday, Obama will make stops in Theodore, Alabama; Gulfport, Mississippi; and Pensacola, Florida.
Fresh from that two day trip, the president will address the nation. The speech at the White House is expected at 8 p.m. ET Tuesday, and will last for about 15 minutes, the White House confirmed.
While the president will address the overall crisis, he will have specific themes.
The senior official said Obama would touch on "what needs to happen on restructuring government regulation, plans for containment, economic claims and long-term recovery."
The presidential address will take place less than 24 hours before Obama meets with BP executives at the White House, face-to-face. It's the first such meeting since oil started gushing into the Gulf.
CNN's Ed Henry contributed to this report.