In today's "What to Watch on Wall Street" segment for Tuesday, Sept. 2, we get into the swing of things after the long holiday weekend. Traders will be watching if escalating geopolitical tensions continue to weigh on the markets. On the U.S. economic calendar, Wall Street takes a closer look at our nation’s manufacturing industry with figures from the Institute for Supply Management. Construction spending numbers from the commerce department will also be released on Tuesday, shortly after the opening bell. For the latest financial news and updates from Wall Street, check back here on TheStreet.com throughout the day.