Just when you think that you have reached the rocky bottom of John Bolton’s lack of character, you realize just how profound those depths really are:

John R. Bolton flew to Europe in 2002 to confront the head of a global arms-control agency and demand he resign, then orchestrated the firing of the unwilling diplomat in a move a U.N. tribunal has since judged unlawful, according to officials involved.

A former Bolton deputy says the U.S. undersecretary of state felt Jose Bustani “had to go,” particularly because the Brazilian was trying to send chemical weapons inspectors to Baghdad. That might have helped defuse the crisis over alleged Iraqi weapons and undermined a U.S. rationale for war.

So let’s pause and consider this: Bolton tried to get someone fired because they were trying to send weapons inspectors to Iraq. And we invaded Iraq because . . . .????? My Brain Hurts!!!

But wait, there’s more:

An official British document, disclosed last month, said Prime Minister Tony Blair agreed in April 2002 to join in an eventual U.S. attack on Iraq. Two weeks later, Bustani was ousted, with British help.

In 1997, the Brazilian arms-control specialist became founding director-general of the OPCW, whose inspectors oversee destruction of U.S., Russian and other chemical weapons under a 168-nation treaty banning such arms. The agency, based in The Hague, Netherlands, also inspects chemical plants worldwide to ensure they’re not put to military use.

In May 2000, one year ahead of time and with strong U.S. support, Bustani was unanimously re-elected OPCW chief for a 2001-2005 term. Colin Powell, the new secretary of state, praised his leadership qualities in a personal letter in 2001.

It gets worse:

The United States went public with the campaign in March 2002, moving to terminate Bustani’s tenure. On the eve of an OPCW Executive Council meeting to consider the U.S. no-confidence motion, Bolton met Bustani in The Hague to seek his resignation, U.S. and OPCW officials said.

When Bustani refused, “Bolton said something like, `Now we’ll do it the other way,’ and walked out,” Rigg recounted.

In the Executive Council, the Americans failed to win majority support among the 41 nations. A month later, on April 21, at U.S. insistence, an unprecedented special session of the full treaty conference was called.

Addressing the delegates, Bustani said the conference must decide whether genuine multilateralism “will be replaced by unilateralism in a multilateral disguise.”

Only 113 nations were represented, 15 without voting rights because their dues were far in arrears. The U.S. delegation had suggested it would withhold U.S. dues — 22 percent of the budget — if Bustani stayed in office, stirring fears of an OPCW collapse.

This time the Americans, with British help, got the required two-thirds vote of those present and voting. But that amounted to only 48 in favor of removing Bustani — and seven opposed and 43 abstaining — in an organization then with 145 member states.

Please contact your senators. Please make sure this latest outrage becomes the nail in Bolton’s confirmation coffin.