Tuesday's market wrap

Wall Street fell sharply on Tuesday as the new Federal Reserve chair told Congress that he expects more interest rate hikes ahead.
Jerome Powell signalled the Fed could potentially lift interest rates more this year to keep the U.S. economy from overheating ... sparking anxiety among some traders.
The Dow Jones slipped by 300-points,... or little over one-percent to 25,410.
The S&P 500 and Nasdaq,... both finished more than one-point-2 percent lower.
And shares in Korea reversed early gains to close lower by less-than-one-percent at 2,456-point-1-4.
Junior index KOSDAQ,... also lost a bit at 874-point-0-1.