The idea of the "left" and "right" has changed with time. Bill Clinton took the Democrats to the center. GW Bush massively increased the size of the government (anathema to the right). Obama reduced the size of the government (anathema to the left). the "Right" increases budget deficits (Cheney and Reagan said explicitly that deficits don't matter). Bill CLinton balanced the budget for the first time in decades. The stock market does better under the supposedly anti-business Democrats. It does worse under the supposedly pro-business Republicans.