Which animal is the traditional symbol of the Democratic Party?

Which party was founded by Thomas Jefferson and James Madison? 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 cartoonist popularized the elephant and donkey party symbols? What is the nickname of the Republican Party? Which president won the 2000 election after a Supreme Court ruling on the Florida recount? Whom did Barack Obama defeat in the 2008 presidential election?