MSN News 5 to Watch: February 26

A look at today's top news headlines, updated throughout the day.

Barack Obama may be battling scandals, but he's hardly the first president to face controversy. Here's a list of other presidential scandals and their fallout.

The massive tornado that killed at least 24 people and flattened entire communities in Oklahoma generated several hundred times more energy than the Hiroshima bomb, meteorologists say.