Washington: Former Secretary of State Rex Tillerson took a veiled shot at President Donald Trump on Wednesday, warning that a growing national crisis of ethics and integrity has put American democracy at risk.

In remarks to graduates of the Virginia Military Institute, Tillerson lamented assaults on facts that he said would lead to a loss of freedom if not countered. And he said that only societies able to pursue the truth and challenge alternate realities can be truly free.

"When we as people, a free people, go wobbly on the truth, even on what may seem to be the most trivial of matters, we go wobbly on America," Tillerson said. "If we do not as Americans confront the crisis of ethics and integrity in our society among our leaders in both public and private sector, and regrettably at times in the nonprofit sector, then American democracy as we know it is entering its twilight years."

Tillerson did not mention his former boss by name on Wednesday but alluded to some policies of the Trump administration by decrying those who neglect or ignore long-standing allies or deny that free trade is an engine of global growth.