A candidate for Chicago mayor and a former-governor joined veterans groups in calling on Congress to pass a bill to help millions of veterans who were exposed to toxic chemicals in Iraq and Afghanistan. WBBM's Terry Keshner reports.

<p>A candidate for Chicago mayor and a former-governor joined veterans groups in calling on Congress to pass a bill to help millions of veterans who were exposed to toxic chemicals in Iraq and Afghanistan. WBBM's Terry Keshner reports.</p>

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