DENVER, Colorado – High up in the Mile High city as Denver is known the air is thick with political excitement.As part of two teams covering the Convention, we've been running around, like our hair's on fire!

Isha Sesay heard the speech despite the best efforts of the Secret Service and a bus driver.

With approximately 20,000 people swarming around, the biggest issue is crowds and security.

Last night, ahead of Hillary Clinton's speech the line of people snaked round the Pepsi centre venue.

We arrived at around 7 p.m., expecting to use a special media line and we're told, quite simply, "no" by the Secret Service.

With our live shot times rapidly approaching, the tension was mounting and just as I was about to start pulling out my hair, a couple of large coaches pulled up.

The plan? Bus some of the crowd to another entrance.

Imagine my horror, when we got on the bus and found out from the driver she had no idea where she was going!

After a few heartstopping minutes, a wrong turn, and a u-turn in the middle of the road, we finally made it!

When the buses stopped, I felt like I was in some kind of race, as people ran for the entrance, all of us with one goal in mind – to make it into the building before Hillary Clinton took the stage.

We got there with just a few minutes to spare. but it was chaotic and tight. Had anything else gone wrong, we would have have missed the big speech.