Conn. Gen. Stat. § 9-618

(b) No political committee organized for ongoing political purposes, except a legislative caucus committee or legislative leadership committee, shall make a contribution or contributions to, for the benefit of, or pursuant to the authorization or request of, a candidate or a committee supporting or opposing any candidate's campaign for nomination at a primary, or any candidate's campaign for election, to the office of: (1) Governor, in excess of five thousand dollars; (2) Lieutenant Governor, Secretary of the State, Treasurer, Comptroller or Attorney General, in excess of three thousand dollars; (3) chief executive officer of a town, city or borough, in excess of one thousand five hundred dollars; (4) state senator or probate judge, in excess of one thousand five hundred dollars; (5) state representative, in excess of seven hundred fifty dollars; or (6) any other office of a municipality not previously included in this subsection, in excess of three hundred seventy-five dollars. The limits imposed by this subsection shall apply separately to primaries and elections.

(c) No political committee organized for ongoing political purposes, except a legislative caucus committee or legislative leadership committee, shall make a contribution or contributions in a calendar year to, or for the benefit of (1) the state central committee of a political party, in excess of seven thousand five hundred dollars; or (2) a town committee of a political party, in excess of one thousand five hundred dollars.

(d) (1) No legislative caucus committee or legislative leadership committee shall make a contribution or contributions to, for the benefit of, or pursuant to the authorization or request of, a candidate or a committee supporting or opposing any candidate's campaign for nomination at a primary, or any candidate's campaign for election, to the office of: (A) State senator, in excess of ten thousand dollars; or (B) state representative, in excess of five thousand dollars. The limits imposed by this subdivision shall apply separately to primaries and elections. No legislative caucus committee or legislative leadership committee shall make a contribution or contributions to, for the benefit of, or pursuant to the authorization or request of, a candidate or a committee supporting or opposing any candidate's campaign for nomination at a primary, or any candidate's campaign for election, to any office not included in this subdivision. Subject to the provisions of this subdivision, a legislative caucus committee or legislative leadership committee may pay or reimburse another legislative caucus committee or legislative leadership committee for its pro rata share of certain expenses in accordance with subdivision (2) of subsection (b) of section 9-610 .

(2) No legislative caucus committee or legislative leadership committee shall make a contribution or contributions in any calendar year to, or for the benefit of, the state central committee of a political party, in excess of ten thousand dollars.

(3) No legislative caucus committee or legislative leadership committee shall make a contribution or contributions to, or for the benefit of, any committee except as provided in this subsection.

(e) A political committee organized for ongoing political activities may receive contributions from the federal account of a national committee of a political party, but may not receive contributions from any other account of a national committee of a political party or from a committee of a candidate for federal or out-of-state office.