From TPM:

Another major tracking poll is showing the start of a convention bounce for Barack Obama. The latest numbers from Rasmussen: Obama 49%, McCain 45%, with a ±2% margin of error, up from a 47%-47% tie yesterday.

Bear in mind that this is a three-day rolling poll that stopped sampling some time yesterday — meaning we’ve only just begun to see the impact of Bill and Hillary Clintons’ speeches, and no impact at all from after Obama’s big victory speech last night.

Yesterday’s Gallup poll also showed a convention bounce, with Obama taking a solid 48%-42% lead.

Stay tuned for today’s Gallup tracking poll, due at 1 p.m.