Federal Reserve officials worried at their July meeting about the state of the labor market and inflation, though most agreed that it was too soon to lower interest rates, minutes released Wednesday showed.

I have no intention of being bullied to step down from my position because of some questions raised in a tweet,” Cook said in a statement.

Cook responded to Pulte in a statement, "I have no intention of being bullied to step down from my position because of some questions raised in a tweet."

Wall Street's main indexes fell on Wednesday, with a selloff in tech stocks driving the Nasdaq to a two-week low as caution prevailed ahead of the Federal Reserve's highly anticipated Jackson Hole symposium this week.

Futures for the main stock indexes retreated before the market opened on Wednesday, continuing to fall after a tech selloff in the previous session. Minutes from the Federal Reserve’s last meeting and earnings from big-name retailers could push them in either direction later in the day.

Wall Street's main indexes declined on Wednesday and the Nasdaq hit a two-week low as a rally in technology stocks cooled and caution prevailed ahead of the Federal Reserve's highly anticipated Jackson Hole symposium later this week After driving much of the market's recovery from the April selloff,