July 1 (Reuters) - The S&P 500 and Nasdaq indexes opened

lower on Tuesday, after touching record highs a day earlier, as

investors monitored U.S. trade talks and a voting marathon in

Washington over President Donald Trump's tax and spending bill.

The Dow Jones Industrial Average fell 33.3 points, or

0.08%, at the open to 44,061.49. The S&P 500 fell 17.7

points, or 0.29%, at the open to 6,187.25​, while the Nasdaq

Composite dropped 79.1 points, or 0.39%, to 20,290.611

at the opening bell.

(Reporting by Nikhil Sharma; Editing by Devika Syamnath)