On the eve of the February 28 Michigan primary, Romney delivered a speech promising a second tax cut on top of the Bush tax cuts to a top rate of 28%.

CNN: Romney caves to far right

There are many technological and economic reasons for this unprecedented explosion of speech and human interaction, but the primary legal reason lies with Sec. 230.

FORBES: The Greatest of All Internet Laws Turns 15

The four-term senator picked South Carolina -- a key primary battleground state -- for his speech in which he criticized Bush's handling of the economy and his foreign policy.

CNN: Blasting Bush, Kerry makes it official

His first speech to a conservative audience after the contentious GOP primary season was at the NRA's annual meeting this spring, a speech in front of more than 60, 000 gun enthusiasts in St.

CNN: December 20, 2012 -- Updated 1625 GMT (0025 HKT)