  Here we study the effect of electron doping the kagome superconductor
CsV$_3$Sb$_5$. Single crystals and powders of CsV$_3$Sb$_{5-x}$Te$_x$ are
synthesized and characterized via magnetic susceptibility, nuclear quadrupole
resonance, and x-ray diffraction measurements, where we observe a slight
suppression of the charge density wave transition temperature and
superconducting temperature with the introduction of electron dopants. In
contrast to hole-doping, both transitions survive relatively unperturbed up to
the solubility limit of Te within the lattice. A comparison is presented
between the electronic phase diagrams of electron- and hole-tuned
CsV$_3$Sb$_5$.
