Misty Snow is running against Sen. Mike Lee
Florida senator cited tragedy as reason to seek re-election
Some see hypocrisy, others anti-Muslim motives
Embraces role as first woman presidential nominee of major party
In first, openly transgender person at major U.S. party convention
Kaine, Biden also make case for Democratic nominee
Calls Republican remarks in Cleveland 'divisive, degrading, demeaning'
2016 hopeful becomes first woman pick of major party
'It says we're welcome, we're going to make life better'
Michelle Obama electrifies crowd; speakers reference LGBT rights
