Richard Nixon

Investing: Will White House worries hit stocks?

Investors are wondering if the stock market's Trump bump could morph into the Trump slump as questions continue to swirl around the White House regarding its Russia connections. It's a high-stakes concern. Since President Trump's election in November, stocks have risen 14 percent on high hopes for the president's pro-business agenda. But policy has been overshadowed by probes in Congress and in the Justice Department.

Many recall the Watergate scandal that forced Richard Nixon from office, and the brutal bear market of that era that lopped 48 percent off stock prices. Standard & Poor's 500-stock index plunged 26 percent between the Saturday Night Massacre on October 20, 1973,...