Democrat Hillary Clinton said Tuesday that she would consider subjecting investment income to Social Security taxes, and would consider applying the tax to higher wages as a way to extend solvency of the program and expand benefits for the poorest seniors.

Still, she stopped well short of endorsing plans backed by rivals Bernie Sanders and Martin O’Malley for an across-the-board benefit increase, and she didn't commit to the tax increases on the wealthy that her rivals support.

...