Twelve states have order ordered flags be raised on Monday to acknowledge the inauguration for incoming-President Donald Trump.

Here's why flags are flying at half-staff, and why President-elect Donald Trump isn't thrilled with the decision.

Gov. Jared Polis announced an order that flags across Colorado be flown at full-staff during President-elect Donald Trump's inauguration. Flags are currently at half-staff across the state to honor former President Jimmy Carter.

Despite the national mourning period for the late Jimmy Carter, Washington's Gov. Bob Ferguson is directing flags to be raised Monday for Inauguration Day.

Gov. Jared Polis announced Friday that flags across the state will be raised to full-staff from sunrise to sunset on Jan. 20, when President-elect Donald Trump is scheduled to be sworn in. Flags are being flown at half-staff as part of a month of mourning for former President Jimmy Carter,