Indices closed in red territory on Tuesday. Hewlett-Packard, Alcoa, and Bank of America led the Dow’s descent. Stocks slipped amid word of political turmoil in Greece. Meanwhile, crude oil fell 93 cents to settle at $97.01 a barrel. Walt Disney reported respectable quarterly data after the closing bell. Fiscal second-quarter profit jumped 21%. Earnings hit $1.14 billion, or 63 cents a share, versus a profit of $942 million, or 49 cents, a year ago.