Q Radio News
It's understood a crowdfunding campaign has been started by the Green Party's Ciaran McClean, to pay for a judicial review.
Last month it was reported he would potentially seek to challenge the parliamentary deal between the Tories and the DUP.
That was on the basis it contravenes terms in the Good Friday Agreement and the Bribery Act.
The confidence-and-supply agreement between the Conservatives and the Democratic Unionists was signed on June 26.
It set aside provisions for £1 billion of funding for a range of services in Northern Ireland.
Noah Donohoe inquest adjourned after three days of jury deliberations
PSNI chief constable warns against ‘wild speculation’ about Jeffrey Donaldson
Pensioner arrested in connection with the 1973 murder of Marian Beattie
Poots says he has ‘nothing to answer for’ over Donaldson concerns
Man dies following road crash in Co Fermanagh