U.S. Senator Marco Rubio has published a letter to Chairman Menendez and Ranking Member Risch of the Senate Committee on Foreign Relations regarding the pending 2010 income and capital tax treaty with Chile. The letter, from Senator Rubio and 17 other Senators, urges the Chairman and Ranking member to prioritize the U.S.-Chile tax treaty this year by scheduling a committee vote. As noted in the letter (main text below), Chile's corporate tax system provides for a higher effective rate of tax…