Congress is coming to Philadelphia in July

Driving the news: Independence Hall will host a ceremonial event with congressional members on July 2, according to U.S. Rep. Brendan Boyle, the Philly congressman who's been pushing for the gathering.

The intrigue: It is uncertain who will show up, including whether President Trump will take part.

• The event is not an official session of Congress, so representatives in the House and Senate are under no obligation to attend.
• Plus: Deep-blue Philly isn't exactly a favorite destination of some national Republicans.

Context: In 1776, the Second Continental Congress signed the Declaration of Independence at Independence Hall.

• Then, in 1787, delegates from the Constitutional Convention hashed out and signed the U.S. Constitution there.

Fun fact: Independence Hall was originally built to be the Pennsylvania State House, and it once housed all three branches of state government.

What we're watching: Whether the nation's 250th anniversary has the power to disarm politics for one special day.