Publicola (1.3-1.4)

Now Tarquinius Superbus had not acquired his power honourably, but by the violation of divine and human laws; nor did he exercise it in kingly fashion, but after the manner of an insolent and haughty tyrant. The people therefore hated him, resented his oppressions, and found occasion for revolt in the fate of Lucretia, who made away with herself after violence had been done to her. Lucius Brutus, engaging in the revolution, came to Valerius first of all, and with his most zealous assistance drove out the kings.[*]

Then, as long as the people was likely to elect one man as their commander in place of the king, Valerius acquiesced, thinking it more fitting that Brutus should have the office, because he had led the way to freedom. But the very name of monarchy was odious to the people, who thought that it would be less vexatious to submit to an authority which was divided, and therefore proposed and demanded that two men should be elected to the highest office. Then Valerius, who hoped that he would be chosen next to Brutus, and would be consul with him, was disappointed.