Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Helplessness of Pompeius
The helplessness of Pompeius in presence of these daring demonstrations, as well as the undignified and almost ridiculous position into which he had fallen with reference to Clodius, deprived him and the coalition of their credit; and the section of the senate which adhered to the regents, demoralized by the singular inaptitude of Pompeius and helplessly left to itself, could not prevent the republican-aristocratic party from regaining completely the ascendency in the corporation. The game of this party really at that time (697) was still by no means desperate for a courageous and dexterous player. It had now--what it had not possessed for a century past--a firm support in the people; if it trusted the people and itself, it might attain its object in the shortest and most honourable way.
Why not attack the regents openly and avowedly? Why should not a resolute and eminent man at the head of the senate cancel the extraordinary powers as unconstitutional, and summon all the republicans of Italy to arms against the tyrants and their following? It was possible perhaps in this way once more to restore the rule of the senate. Certainly the republicans would thus play a bold game; but perhaps in this case, as often, the most courageous resolution might have been at the same time the most prudent. Only, it is true, the indolent aristocracy of this period was scarcely capable of so simple and bold a resolution.
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Reference address : https://www.ellopos.net/elpenor/rome/5-08-pompeius-caesar.asp?pg=16