10. Is there a ban on donations from corporations with government contracts to candidates?
Latvia
Section 8.4. Restrictions on Pre-election expenses stipulate: (4.1) In case if a candidate performs an individual pre-election campaign, all expenditures of this campaign are considered as expenditures of a respective political party's pre-election expenditures from which list he/she participates in an elections. (Source: Law on Financing of Political Organisations (Parties))
All financial activities by a candidate are considered as financial activities of his/her respective nominating political party.