He is the current House Budget Committee Leader (paraphrase) and Congressman from Wisconsin and the former 2012 Republican Vice Presidential nominee to Mitt Romney that you surely all remember well.
In this speech he speaks about the fiscal issues that America is facing and his plan to reverse our current course (which includes repealing Obamacare).
I love Paul Ryan and look forward to seeing him have a bright future. I hope that he will run again for President some day.