It took years for the U.S. to ratify three trade agreements worth billions of dollars and thousands of jobs for U.S. agriculture and other sectors. Now - that delay has become an issue in the Presidential race. President Obama takes credit for re-negotiating with Labor and Environmental Protections the Colombia, Panama and South Korea Free Trade deals - worth some 2.4-billion and 22-thousand new jobs for U.S. agriculture. But GOP challenger Mitt Romney charges in a foreign policy speech in Virginia this week that Obama has no trade agenda and has signed no new bilateral trade deals. The three were all started under Republican President George W. Bush and first signed in 2007. American Farm Bureau Trade Chief Dave Salmonsen won’t discuss the politics - just the history behind the deals…