[2] Jacques ran for election as Representative of the Oran department in the National Assembly on 17 February 1871, but won only 2,175 votes out of 10,167.

After Joseph Andrieu resigned and Léon Gambetta chose to represent another department there were two vacancies in the Assembly for Oran.

He voted for invalidation of Louis Auguste Blanqui's election, for Article 7 of the Higher Education Act, for the new press laws and for the right of assembly.

[2] On 30 June 1881 Jacques attacked the acting Governor-General of Algeria, Albert Grévy, for having caused the insurrection in Sud-Oran through his negligence.

[4] On 6 March 1891 he intervened in a discussion over antagonism between colonists and indigenous people and stated his regret that France had not brought more vinemakers to Algeria after the southern French vineyards had been ruined by phylloxera.

Jacques intervened again to ask that useful proposals from the report be brought together in an organic law, which would end the administrative instability in Algeria.

On 2 September 1891 Jacques joined the senators for Algiers and Constantine in asking for credits to fight locust invasions in Algeria.