I’ve studied, admired and gotten to know a lot of leaders in my life. Across Florida, in Washington and around the country, I've watched the failure of those who favor extreme rhetoric over sensible compromise, and I've seen how those who never lose sight of solutions sow the greatest successes. As America prepares to pick our president for the next four years — and as Florida prepares once again to play a decisive role — I'm confident that President Barack Obama is the right leader for our state and the nation. I applaud and share his vision of a future built by a strong and confident middle class in an economy that gives us the opportunity to reap prosperity through hard work and personal responsibility. It is a vision of the future proven right by our history. We often remind ourselves to learn the lessons of the past, lest we risk repeating its mistakes. Yet nearly as often, our short-term memory fails us. Many have already forgotten how deep and daunting our shared crisis was in the winter of 2009, as President Obama was inaugurated. It was no ordinary challenge, and the president served as the nation's calm through a historically turbulent storm. The president's response was swift, smart and farsighted. He kept his compass pointed due north and relentlessly focused on saving jobs, creating more and helping the many who felt trapped beneath the house of cards that had collapsed upon them. He knew we had to get people back to work as quickly as possible — but he also knew that the value of a recovery lies in its durability. Short-term healing had to be paired with an economy that would stay healthy over the long run. And he knew that happens best by investing in the right places. President Obama invested in our children's schools because he believes a good education is a necessity, not a luxury, if we're going to create an economy built to last. He supported more than 400,000 K-12 teachers' jobs, and he is making college more affordable and making student loans, like the ones he took out, easier to pay back. He invested in our runways, railways and roads. President Obama knows a reliable infrastructure that helps move people to work and helps businesses move goods to market is a foundation of growth. And the president invested in our retirement security by strengthening Medicare. The $716 billion in savings his opponents decry today extended the life of the program by nearly a decade and are making sure taxpayer dollars aren't wasted in excessive payments to insurance companies or fraud and abuse. His opponents would end the Medicare guarantee by creating a voucher that would raise seniors' costs by thousands of dollars and bankrupt the program. We have more work to do, more investments to make and more waste to cut. But only one candidate in this race has proven a willingness to navigate a realistic path to prosperity. As Republicans gather in Tampa to nominate Mitt Romney, Americans can expect to hear tales of how President Obama has failed to work with their party or turn the economy around. But an element of their party has pitched so far to the extreme right on issues important to women, immigrants, seniors and students that they've proven incapable of governing for the people. Look no further than the inclusion of the Akin amendment in the Republican Party platform, which bans abortion, even for rape victims. The truth is that the party has failed to demonstrate the kind of leadership or seriousness voters deserve. Pundits looking to reduce something as big as a statewide election to a single photograph have blamed the result of my 2010 campaign for U.S. Senate on my greeting of President Obama. I didn't stand with our president because of what it could mean politically; I did it because uniting to recover from the worst financial crisis of our lifetimes was more important than party affiliation. I stood with our nation's leader because it was right for my state. President Obama has a strong record of doing what is best for America and Florida, and he built it by spending more time worrying about what his decisions would mean for the people than for his political fortunes. That's what makes him the right leader for our times, and that's why I'm proud to stand with him today. Charlie Crist is the former Republican governor of Florida and previously was elected as a state senator, education commissioner and attorney general. He currently is registered as no party affiliation. Crist wrote this column exclusively for the Tampa Bay Times.