It’s a big get-together for various religious wackos to wish death on the President and suffering on his family, like one US Senator did a little while ago. More from that particular psalm:

Let his days be few,
And let another take his office.
9 Let his children be fatherless,
And his wife a widow.
10 Let his children continually be vagabonds, and beg;
Let them seek their bread[b] also from their desolate places.
11 Let the creditor seize all that he has,
And let strangers plunder his labor.
12 Let there be none to extend mercy to him,
Nor let there be any to favor his fatherless children.
13 Let his posterity be cut off,
And in the generation following let their name be blotted out.

14 Let the iniquity of his fathers be remembered before the Lord,
And let not the sin of his mother be blotted out.
15

...yep, pretty much in line with how the GOP has dealt with Obama’s terms in the WH. Make sure you vote in your US Senate election this year if your state’s having one.

update - video at link in following tweet: