Zachary Quinto spent six hours manning phones in Chicago, Illinois on Tuesday (06Nov12) as he supported Barack Obama's campaign for a second term as U.S. President.

Proud to be manning the voter protection hotline at obama HQ in chi town (Chicago)!! six hours on the phone lines. the most inspiring day in ages

The incumbent leader has gone head-to-head with Republican rival Mitt Romney in the election.

Quinto gave up his time in a bid to keep Obama in the White House and provide help and support to Americans headed to the polls.

In a series of posts on his Twitter.com page, he writes, "Proud to be manning the voter protection hotline at obama HQ in chi town (Chicago)!! six hours on the phone lines. The most inspiring day in ages".