They plotted long before, and the truth came anyway.
Schemes that could not stop what Allah willed
Ibn Kathir explains that from the early days in Madinah, the hypocrites had plotted and turned matters upside down. After Badr, Abdullah bin Ubayy and his circle said this matter has prevailed and accepted Islam outwardly. Yet the truth came and Allah's command became clear, though they disliked it.
Someone at work has been undermining you for months, twisting what you say. It is exhausting. Do your work honestly and leave the outcome to Allah. Schemes look powerful up close.
If people plot against me, they will win.
Plots can delay and hurt, but they do not override what Allah decrees.
Make a short dua about someone working against you, then do your next task well and let it go.