| Apparent tension in the Hubble constant (H0) between the local distance ladder and the cosmic microwave background points toward a significant problem in the ΛCDM cosmological model. To better understand this tension, the SH0ES team recently improved the local measurement of H0 by 1) increasing the precision of geometric anchor distances used to calibrate the luminosity of Cepheid variables, 2) doubling the sample of galaxies with both Cepheids and Type Ia supernovae (SNe Ia) that are used to calibrate the SN Ia luminosity, and 3) improving the fidelity of the low-redshift SN Ia sample used to measure H0 through new surveys and revised selection criteria. I will give an overview of the recent SH0ES analysis, which reduces nearly every current systematic uncertainty in the local measurement of H0. I will discuss ongoing efforts to build higher-fidelity samples of Cepheids and SNe Ia in the nearby universe, particularly with the Young Supernova Experiment on Pan-STARRS and the DEHVILS near-infrared survey on UKIRT. |