This talk will mainly be focused on two high-precision measurements
concerning isospin symmetry-breaking in nuclei. The first part of my
talk will describe an experiment that provides a stringent test of the
isobaric multiplet mass equation (IMME) using the $^{31}{\rm
P}(p,\gamma)$ reaction. The second part of my talk will describe
recent experiments to measure the $ft$ value for the superallowed
Fermi decay of $^{32}{\rm Ar}$. The measured $ft$ value is the first
such measurement for a $T = 2$ nucleus and is important to check
theoretically calculated charge-dependent corrections.