I’ve decided to run for the U.S. Senate because I believe Wisconsin families need a senator who will work hard to deliver results for the middle class - a leader with the courage to do what’s right, no matter how tough the odds or how powerful the special interests we have to fight.

I have no idea what goes on in another person's mind. As a legislator, I need to be good at persuading people, counting votes and getting to 50 percent plus one. I don't go back and say, 'Why did this person get to the right position?' It's only, 'Are you yes or are you no?

Our president has made historic progress toward equality. He repealed “don’t ask, don’t tell” so that no American ever again has to lie about who they are in order to serve the country we love. Republicans want to write discrimination into our Constitution. But the Wisconsin I know believes that with each passing year and each generation, our country must become more equal, not less.

I find it greatly disturbing that the Bush administration has used political and religious ideologies to influence national policy on science and medicine.

Remember, there are two things that keep us oppressed: them and us. We are half of the equation. There will not be a magic day when we wake up and it's now OK to express ourselves publicly. We must make that day ourselves, by speaking out publicly -- first in small numbers, then in greater numbers, until it's simply the way things are and no one thinks twice. Never doubt that we will create this world, because, my friends, we are fortunate to live in a democracy, and in a democracy, we decide what's possible.

From day one, I have always been open about my sexual orientation.

In my grandfather's lab, scientists did independent research, and peers reviewed and commented on its merits. Politics, he taught me, had no place in the scientific process.