From the firing of thousands of federal employees to threats of ice raids wreaking havoc on immigrant communities, they're among the many reasons Father Michael Pfleger and the members of his church say the United States is under siege.

The flag-raising at Saint Sabina follows a similar protest at Yosemite National Park over the weekend, where frustrated Park Service employees raised their own upside-down flag in response to recent cuts.

Father Michael Pfleger of Chicago took his long-standing criticism of President Donald Trump a step further on Monday.