Dow nears 20,000, Nasdaq hits record as tech stocks gain

Wall Street opened slightly higher on Tuesday, with the Dow Jones Industrial Average resuming its march towards 20,000 and the Nasdaq hitting a record, helped by gains in technology shares. Energy stocks also rose, supported by oil prices. The Dow Jones industrial average marked its seventh straight week of gains on Friday, feeding on optimism that President-elect Donald Trump's plans for deregulation and infrastructure spending would bolster the economy.