At the Missouri Ethics Commission:

[….]
On November 8, 2016, Missouri voters approved Constitutional Amendment 2 which, among its provisions, imposes campaign contribution limits on certain candidates for state office including statewide offices, legislative offices and judicial offices.
[….]
… the effective date is December 8, 2016…
[….]
Section 23, subsection 3(1), provides a contribution limit of $2,600 from any person, other than the candidate, to elect individuals to state office for “one” election.
[….]

Today at the Missouri Ethics Commission for Josh Hawley’s (r) 2020 Attorney General or whatever campaign:

C151132 12/06/2016 HAWLEY FOR MISSOURI Herzog Contracting Corp PO Box 1089 St Joseph MO 64502 12/5/2016 $50,000.00

[emphasis added]

And not a moment too soon.

Previously:

Campaign Finance: loading up under the wire (December 2, 2016)