53. Must reports from political parties and/or candidates include information on itemized income?

Section 8.2 Declaration of Income and Expenses of Elections
(1) Political organisations (parties) which have submitted lists of candidates thereof for the elections of
the Saeima, local government council, or the European Parliament shall, within 30 days after the elections
of the Saeima, local government council, or the European Parliament, submit a declaration of income and
expenses of elections signed by the representative of the relevant political organisation (party) to the
Corruption Prevention and Combating Bureau using the Electronic Data Input System in accordance with
the procedures stipulated by the Cabinet.
(2) The declaration of income and expenses of elections shall disclose all the revenues and expenses
which have been incurred over the period from the 120th day before the elections up to the election day,
regardless of the date when a document attesting the transaction has been written out (invoice, contract or
other document), the payment for the following is received or performed:
1) placement of an advertisement:
a) on public television;
b) on public radio;
c) on commercial television;
d) on commercial radio;
e) in newspapers, magazines, bulletins and other periodicals registered in accordance with the
procedures laid down in the law, produced by print technology and widely circulated throughout the whole
territory of the State;
f) in newspapers, magazines, bulletins and other periodicals registered in accordance with the
procedures laid down in law, produced by print technology and for which the largest part of circulation is
being distributed in the territory of a single republic city or district;
g) on the Internet, except for the website of the political organisation (party);
h) in premises and public places (in squares, streets, on bridges and in other similar places) regardless
of the ownership.
Law on Financing of Political Organisations (Parties) Article 8.2.

yes, per donor and type of the donation.