10 things you need to know before the opening bell

Opponents to Venezuela's President Nicolas Maduro throw stones at soldiers loyal to the president inside La Carlota airbase in Caracas, Venezuela.AP/Fernando Llano

Here is what you need to know.

1. Here comes the Fed. The Federal Reserve is expected to hold its benchmark interest in a range between 2.25% and 2.50%, with Wall Street economists surveyed by Bloomberg seeing just a 2.6% chance of a rate cut.
2. "TSLA shares appear caught in a flywheel of concerns around demand & access to capital driving the share price lower, exacerbating sentiment around demand & access to capital," analyst Adam Jonas wrote in a note to clients out Tuesday.