Which party was founded by Thomas Jefferson and James Madison?

Barbara Bush was the wife of one president and the mother of which other president? Which First Lady is credited with effectively running the executive branch after Woodrow Wilson's stroke? Which political party did Abraham Lincoln belong to? Which political party did Franklin D. Roosevelt belong to? Which party did Alexander Hamilton and John Adams lead? Which party did Theodore Roosevelt found for his 1912 run? Which animal is the traditional symbol of the Republican Party? Which animal is the traditional symbol of the Democratic Party?