As of May 20, 2014, what is the political party of the President?

The political party of the President as of May 20, 2014, is the Democratic Party. This is correct because, at that time, Barack Obama was the sitting President, having been elected as a member of the Democratic Party. His presidency began in January 2009 and lasted until January 2017.

The significance of this answer lies in the context of U.S. political history and the role of political parties in governance. The Democratic Party traditionally supports a range of policies that emphasize social justice, equality, and government involvement in the economy, contrasting with the ideologies of other political parties.

Understanding the political landscape during Obama's presidency helps in grasping the broader implications of party politics within the U.S. system. The other options—Republican, Independent, and Libertarian—represent different political ideologies and factions but do not apply to the presidency held by Obama at that time.